1、 ETSI TS 103 443-2 V1.1.1 (2016-08) Integrated broadband cable telecommunication networks (CABLE); IPv6 Transition Technology Engineering and Operational Aspects; Part 2: NAT64 TECHNICAL SPECIFICATION ETSI ETSI TS 103 443-2 V1.1.1 (2016-08)2 Reference DTS/CABLE-00018-2 Keywords cable, HFC, IPv6 ETSI
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6、tStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorizat
7、ion of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2016. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are
8、Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 103 443-2 V1.1.1 (2016-08)3 Contents Intellectual Property Rights 5g3Foreword . 5g3Modal verbs termino
9、logy 5g3Introduction 5g31 Scope 7g32 References 7g32.1 Normative references . 7g32.2 Informative references 9g33 Definitions and abbreviations . 9g33.1 Definitions 9g33.2 Abbreviations . 9g34 General Considerations 11g34.1 Background 11g34.2 General Overview. 12g34.3 Vendor Considerations . 12g35 Ga
10、p Analysis 13g35.1 Consideration . 13g35.2 Overview 13g36 Domain Functionality . 13g36.1 End to End Network Domains 13g36.2 CPE Home Network Domain . 14g36.3 Access Network Domain 14g36.4 Core Network Domain . 14g36.5 Data Centre Domain . 15g36.6 DMZ Service Domain 15g36.7 Transit and Peering Servic
11、e Domain 15g36.8 Management and Monitoring Domain . 16g36.9 Security Domain . 16g37 Topologies 16g38 Technical Requirements . 16g38.1 General . 16g38.2 High Level Requirements . 18g38.2.1 General 18g38.2.2 LSN . 18g38.2.3 CPE . 19g38.3 NAT64 technology feature requirements . 19g38.4 Detailed LSN Req
12、uirements . 22g38.4.1 LSN Hardware Feature/Topology . 22g38.4.2 LSN General software requirements . 22g38.4.2.1 Integrated topology requirements 22g38.4.2.2 Hairpin topology requirements 24g38.4.3 Scalability . 25g39 Technical Considerations . 25g39.1 Hardware 25g39.2 MTU and fragmentation . 26g39.3
13、 Scaling 26g39.4 Reliability . 26g39.5 Quality of Service . 26g39.6 B4 deployment . 27g3Annex A (informative): Bibliography . 28g3ETSI ETSI TS 103 443-2 V1.1.1 (2016-08)4 History 29g3ETSI ETSI TS 103 443-2 V1.1.1 (2016-08)5 Intellectual Property Rights IPRs essential or potentially essential to the
14、present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI i
15、n respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (https:/ipr.etsi.org/). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existen
16、ce of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Specification (TS) has been produced by ETSI Technical Committee Integrated broadband cable telecommunication net
17、works (CABLE). The present document is part 2 of a multi-part deliverable. Full details of the entire series can be found in part 1 23. Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be in
18、terpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. Introduction Considering the depletion of IPv4 addresses, transition to IPv6 is required in
19、 order to enable continued growth of the customer base connected to cable networks and ensure service continuity for existing and new customers. High-quality connectivity to all kinds of IP-based services and networks is essential in todays business and private life. The present document accommodate
20、s an urgent need in the industry to implement and integrate the IPv6 transition technologies as specified by ETSI TS 101 569-1 1 into their cable networks. The choice of the technology implemented depends on factors such as the business needs, current deployed architectures and plans for cost effect
21、ively transition from IPv4 to IPv6. Current global IPv4 address space was projected to be depleted around the middle of 2012; depletion for the operator was estimated around end 2012. As part of the resulting roll-out of IPv6 in the operators network, specific measures had to be taken to allow a smo
22、oth transition and coexistence between IPv4 and IPv6. ETSI developed requirements to address transition from IPv4 to IPv6 specifying six transition technologies as given by ETSI TS 101 569-1 1 that were at the time considered to be the most appropriate to assist cable operators to transition there c
23、able networks to IPv6. Since then the industry has acquired more experience with the technology options settling in the main for DS-Lite across the cable network market and NAT64 IPv6 transition technologies across the mobile market. The objective of the present document is to define the operational
24、 and engineering requirements to enable engineers to implement a seamless transition of the cable networks to IPv6 with the application of the 6RD transition technology. The present document is the final part of a companion of ETSI standards developed in 4 phases to provide the cable sector in parti
25、cular cable operators engineering and operational staff a standardized approach when integrating one of the five IPv6 transition technologies, NAT64, DS-Lite, 464XLAT, 6RD and MAP-E. ETSI ETSI TS 103 443-2 V1.1.1 (2016-08)6 The first phase assessed the different IPv6 transition technology options be
26、ing defined by industry with recommendation for the most appropriate with consideration of current network architectures, ensuring adequate scale and a cost effective transition approach from IPv4 to IPv6 as the IPv4 addresses deplete. The objective being to examine the pros and cons of the IPv6 tra
27、nsition technologies and recommend the most cost effective solution that would enable the cable operators to minimize the cost of upgrades to their existing network plant whilst maintain continuity of services to their present and new added customers. The details of the study are given by ETSI TR 10
28、1 569 2. In the second phase an ETSI technical specification was developed to specify technical requirements for six transition technologies that industry were considering for use by Cable Operators depending on the current state of their deployed cable network architecture, service model requiremen
29、ts and their IPv6 transition strategy as the IPv4 addresses depleted. These six IPv6 transition technologies are specified by ETSI TS 101 569-1 1, covering NAT64, DSLite, 6RD, NAT44, 464XLAT and MAP-E. In the third phase ETSI developed a series of conformance test specifications to enable the compli
30、ance verification of the five IPv6 transition technologies, NAT64, DS-Lite, 464XLAT, 6RD and MAP-E that were specified during phase 2 standardization. The conformance tests are developed against the requirements given by the ETSI TS 101 569-1 1. The series of conformance tests developed for each of
31、the four transition technologies, are as given by, ETSI TS 103 238 parts 1 3 to 3 5 respectively for NAT64; ETSI TS 103 239 parts 1 6 to 3 8 respectively for MAP-E; ETSI TS 103 241 parts 1 9 to 3 11 respectively for DS-Lite; ETSI TS 103 242 parts 1 12 to 3 14 respectively for XLAT and ETSI TS 103 24
32、3 parts 1 15 to 3 17 respectively for 6RD. Phase 4 is the present project phase for development of technical specifications covering the operational and engineering requirements with the present document being part 2 of a multi-part series covering the IPv6 transition technology NAT64. DOCSISis a re
33、gistered Trade Mark of Cable Television Laboratories, Inc., and is used in the present document with permission. ETSI ETSI TS 103 443-2 V1.1.1 (2016-08)7 1 Scope The present document presents the engineering and operational requirements for the application of the IPv6 transition technology NAT64 as
34、defined by ETSI TS 101 569-1 1 (IPv6 Transition Requirements) implemented within an integrated broadband cable network end to end across its network domains. The present document is part 2 of a multi-part series and presents the operational aspects of the IPv6 transition technology NAT64 across the
35、cable network domains. Only those elements of the network that have to be engineered to operate the IPv6 transition technology NAT64 are presented. Descriptions and interface details of network elements that do not change are already addressed by the relevant equipment cable standards and therefore
36、this information is not included in the present document. The conformity of the NAT64 implementation is relevant when assessing its implementation and operational requirements across the cable network to ensure the implementation is correctly engineered to conform to the requirements of the base sta
37、ndard ETSI TS 101 569-1 1. These conformance tests are not specified in the present document as they are already specified by ETSI TS 103 243 parts 1 15 to 3 17. The operational aspects for the IPv6 transition technology NAT64 are considered when engineered end to end across the cable network domain
38、s: CPE Home Networking Domain Access Network Domain Core Network Domain Data Centre Domain DMZ Service Domain Transit and Peering Domain Management and Monitoring Domain Security Domain The present document specifies the requirements to be considered when the defined IPv6 transition technology NAT64
39、 is engineered across the cable network domains. 2 References 2.1 Normative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the
40、 latest version of the referenced document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of pu
41、blication, ETSI cannot guarantee their long term validity. The following referenced documents are necessary for the application of the present document. 1 ETSI TS 101 569-1: “Integrated Broadband Cable Telecommunication Networks (CABLE); Cable Network Transition to IPv6; Part 1: IPv6 Transition Requ
42、irements“. 2 ETSI TR 101 569: “Access, Terminals, Transmission and Multiplexing (ATTM); Integrated Broadband Cable and Television Networks; Cable Network Transition to IPv6“. ETSI ETSI TS 103 443-2 V1.1.1 (2016-08)8 3 ETSI TS 103 238-1: “Integrated broadband cable telecommunication networks (CABLE);
43、 Testing; Conformance test specifications for NAT64 technology; Part 1: Protocol Implementation Conformance Statement (PICS) proforma“. 4 ETSI TS 103 238-2: “Integrated broadband cable telecommunication networks (CABLE); Testing; Conformance test specifications for NAT64 technology; Part 2: Test Sui
44、te Structure and Test Purposes (TSS Testing; Conformance test specifications for NAT64 technology; Part 3: Abstract Test Suite (ATS) and Protocol Implementation eXtra Information for Testing (PIXIT)“. 6 ETSI TS 103 239-1: “Integrated broadband cable telecommunication networks (CABLE); Testing; Confo
45、rmance test specifications for MAP-E technology; Part 1: Protocol Implementation Conformance Statement (PICS) proforma“. 7 ETSI TS 103 239-2: “Integrated broadband cable telecommunication networks (CABLE); Testing; Conformance test specifications for MAP-E technology; Part 2: Test Suite Structure an
46、d Test Purposes (TSS Testing; Conformance test specifications for MAP-E technology; Part 3: Abstract Test Suite (ATS) and Protocol Implementation eXtra Information for Testing (PIXIT)“. 9 ETSI TS 103 241-1: “Integrated broadband cable telecommunication networks (CABLE); Testing; Conformance test spe
47、cifications for DS-Lite technology; Part 1: Protocol Implementation Conformance Statement (PICS) proforma“. 10 ETSI TS 103 241-2: “Integrated broadband cable telecommunication networks (CABLE); Testing; Conformance test specifications for DS-Lite technology; Part 2: Test Suite Structure and Test Pur
48、poses (TSS Testing; Conformance test specifications for DS-Lite technology; Part 3: Abstract Test Suite (ATS) and Protocol Implementation eXtra Information for Testing (PIXIT)“. 12 ETSI TS 103 242-1: “Integrated broadband cable telecommunication networks (CABLE); Testing; Conformance test specificat
49、ions for 464XLAT technology; Part 1: Protocol Implementation Conformance Statement (PICS) proforma“. 13 ETSI TS 103 242-2: “Integrated broadband cable telecommunication networks (CABLE); Testing; Conformance test specifications for 464XLAT technology; Part 2:Test Suite Structure and Test Purposes (TSS Testing; Conformance test specifications for 464XLAT technology; Part 3: Abstract Test Suite (ATS) and Protocol Implementation eXtra Information for Testing (PIXIT)“. 15 ETSI TS 103 243-1: “Integrat
